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    <h1><span>Rasterbar Software</span></h1>
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<h1 class="title">client_test example program</h1>

<p>Client test is a, more or less, complete bittorrent client. It lacks most
settings and you can't start or stop torrents once you've started it. All
the settings are hardcoded. The commandline arguments are:</p>
<pre class="literal-block">
client_test &lt;filename1.torrent&gt; &lt;filename2.torrent&gt; ...
</pre>
<p>You can start any number of torrent downloads/seeds via the commandline.
If one argument starts with <tt class="docutils literal"><span class="pre">http://</span></tt> it is interpreted as a tracker
announce url, and it expects an info-hash as the next argument. The info-hash
has to be hex-encoded. For example: <tt class="docutils literal">2410d4554d5ed856d69f426c38791673c59f4418</tt>.
If you pass an announce url and info-hash, a torrent-less download is started.
It relies on that at least one peer on the tracker is running a libtorrent based
client and has the metadata (.torrent file). The metadata extension in
libtorrent will then download it from that peer (or from those peers if more
than one).</p>
<p>While running, the <tt class="docutils literal">client_test</tt> sample will look something like this:</p>
<img alt="client_test.png" src="client_test.png" />
<p>The commands available in the client are:</p>
<ul class="simple">
<li><tt class="docutils literal">q</tt> quits the client (there will be a delay while the client waits
for tracker responses)</li>
<li><tt class="docutils literal">l</tt> toggle log. Will display the log at the bottom, informing about
tracker and peer events.</li>
<li><tt class="docutils literal">i</tt> toggles torrent info. Will show the peer list for each torrent.</li>
<li><tt class="docutils literal">d</tt> toggle download info. Will show the block list for each torrent,
showing downloaded and requested blocks.</li>
<li><tt class="docutils literal">p</tt> pause all torrents.</li>
<li><tt class="docutils literal">u</tt> unpause all torrents.</li>
<li><tt class="docutils literal">r</tt> force tracker reannounce for all torrents.</li>
<li><tt class="docutils literal">f</tt> toggle show file progress. Displays a list of all files and the
download progress for each file.</li>
</ul>
<p>The list at the bottom (shown if you press <tt class="docutils literal">d</tt>) shows which blocks has
been requested from which peer. The green background means that it has been
downloaded. It shows that fast peers will prefer to request whole pieces
instead of dowloading parts of pieces. It may make it easier to determine
which peer that sent the corrupt data if a piece fails the hash test.</p>
<img alt="unicode_support.png" src="unicode_support.png" />
<p>There's unicode support on linux, MacOS X and Windows.</p>
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